1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Shkiper50 [21]
3 years ago
14

Question 1

Mathematics
1 answer:
Arada [10]3 years ago
7 0
We have that

<span>question 1
Add or subtract. 
4m2 − 10m3 − 3m2 + 20m3
=(4m2-3m2)+(20m3-10m3)
=m2+10m3

the answer is the option
</span><span>B: m2 + 10m3

</span><span>Question 2: 
Subtract. (9a3 + 6a2 − a) − (a3 + 6a − 3)
=(9a3-a3)+(6a2)+(-a-6a)+(-3)
=8a3+6a2-7a-3

the answer is the option
</span><span>B: 8a3 + 6a2 − 7a + 3 

</span><span>Question 3: 
A company distributes its product by train and by truck. The cost of distributing by train can be modeled as −0.06x2 + 35x − 135, and the cost of distributing by truck can be modeled as −0.03x2 + 29x − 165, where x is the number of tons of product distributed. Write a polynomial that represents the difference between the cost of distributing by train and the cost of distributing by truck. 


we have that
[</span>the cost of distributing by train]-[the cost of distributing by truck]
=[−0.06x2 + 35x − 135]-[−0.03x2 + 29x − 165]
<span>=(-0.06x2+0.03x2)+(35x-29x)+(-135+165)
=-0.03x2+6x+30

the answer is the option
</span><span>C: −0.03x2 + 6x + 30
</span><span>

</span>
You might be interested in
IMPORTANT! PLEASE HELP!
WARRIOR [948]

y=-16t²+400
add -16t² to both sides
-16t²=-400
divide both sides by 16
t²=-25
t=√25
t=5

So in 5 seconds the camera will hit the water.
7 0
3 years ago
Read 2 more answers
james trained for the boston marathon for 3(1/2) hours every day. how many hours did he train each week?
iVinArrow [24]
Y = 3.5x
24= 3.5x
the train will be ride 6 times each day 
and there are 7 days in a week
so multiply 6 and 7
=42
4 0
3 years ago
A certain drug concentration of 2.145 mg per 1.716 mL, how many mL are needed to give 2.937 gram of the drug.
Ivenika [448]

Answer:

2,349.6‬ ml

Step-by-step explanation:

To start solving this, i realized that there was a difference in the units given and the units asked for in the answer, so I converted 2.937 grams to 2,397 mg. It is given that there are 2.145 mg of the drug in 1.716 mL, so set up the equation 2.145 / 1.716 = 2,937 / x, where x is the mL of the drug needed. Cross multiply to get 5039.892 = 2.145 x. Divide by 2.145 and get 2,349.6‬ ml

5 0
3 years ago
3x+4y=24 ,4x+3y=22 simultaneous equations simultaneous equ
Vinvika [58]

Answer:

x=64

y=54

Step-by-step explanation:

3x+4y=24 4(24-4y\3)+3y=22

x=24-4y/3 96-12y\3+3y=22

x=24-4(54)/3

x=-64 96/3-22=3y/3

y=54

4 0
2 years ago
Plz help me am very confused
brilliants [131]
1) Well you divide the copies by 14 for the amount of friends that Ivan has helping him then multiply that to the 0.25 cents that he is playing them.

2) You multiply 1428 of the copies of flyers to the 0.10 then add that answer to the answer of number 1
3 0
3 years ago
Read 2 more answers
Other questions:
  • A(1)=-13<br> A(n)=a(n-1)+4<br> Find the 2nd term
    8·1 answer
  • A line passes throught the point (-4,7) and has a slope of 2/3. Write an equation in point slope form for this line.
    12·1 answer
  • Which expression is equivalent?
    11·1 answer
  • A building 56 ft high casts a 196-ft shadow. Sarah casts a 14-ft shadow. The triangle formed by the building and its shadow is s
    13·1 answer
  • Use the conversion formula to write the equation for the new function, F(t).
    5·1 answer
  • im asking this again because some people are I D I O T S but no links and no random answers PLEASEEE HELP! im gonna fail this cl
    8·2 answers
  • What is the Greatest Common Factor (GCF) of the following terms?
    15·1 answer
  • Theorem: A line parallel to one side of a triangle divides the other two proportionately.
    6·1 answer
  • I really need help Really
    6·1 answer
  • Which statement is correct regarding the measurements of the parallelogram?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!